The new longer battery life is wonderful, I never needed my 2nd battery even after shooting all day

Battery life is great

Battery life is improved compare to the 7R2

The dual card slot is excellent, because knowing that you're not at risk of losing hours of prep and shooting to a faulty card is a Big Deal!The extended battery life is cool, but not consequential to me, unless I'm shooting video

Works great, iso is amazing real fast focus excellent battery life outstanding camera you won't regretted

Truthfully, the D750 may not produce images as sharp as those the Sonys are capable of producing in good lighting, but the D750 with a 20mm or a 70-200mm Tamrom Way outperforms any Sony in low light--yes, including the A7RIII (the new one, that is).Anyway, the Sonys produce super sharp images with native lenses and non-native lenses with good adapters, but they tend to perform poorly in low light, relative to Nikons

IBIS technology is another huge advantage of Sony - you can pick super old (and cheap) lenses from ebay and they will be stabilized once you put them on Sony!l